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(No Model.)

W.. WHITEHEAD 8v F. W. MAGUIRE.

CLUTCH PCR MACHINERY.

No. 336,273. 6 Patented-Feb. 16, 1886.

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WTCC@ www CAC/LMC. C jgww UNITED STATES PATENT Ormes.

WILLIAM WHITEHEAD AND FRANK W. MAGUIRE, OF PHILADELPHIA, PA.

CLUTCH FOR MACHINERY.

SPECIFICATION forming part of Letters Patent No. 336,273, dated February 16, 1886.

Application filed August 24, 1885. Serial No. 175,248. (No model.)

To all whom it may concern:

Beit known th at we, WILLIAM WHITEHEAD and FRANK W. MAGUIRE. citizens ot'theUnited States, residing in Philadelphia, (German` town,)in the county of Philadelphia and State of Pennsylvania, have invented a certain Improvementin Clutches for Machinery, of which the following is a specilication.

Our invention relates to a class ot' clutches for machinery, which clutches are required to be alternately thrown into and out of gear hy some moving part of the machine. The object of our invention is to lock said clutch properly in gear when necessary, and be free to open when desired.

The invention consists in the combination with a sliding clutch-wheel and yoke a locking-arm and retaining cam-catch iixed to the Clutchbperating shaft, all as will be hereinafter described, reference being had to the accompanying drawings, making a part of this specih'cation, in which- Figure l is a side view of a toothed clutch mechanism with our improved lock. Fig. 2 is a side and edge view ot' the locking-arm. Fig. 3 is a view of the cam-catch.

Similar letters refer to similar parts throughout the several views.

Our improvement is more especially adapted to a class of clutches that are used on yarnspinning machinery known as self-operating mules,77 and the clutchis known as the drawing-out clutch; but our improvement may be used on other machinery requiring such a clutch.

Fig. l shows our improvement attached to a clutch which is old and well known, and it will not be necessary to describe its general construction, but only that part which we claim as our invention and such parts as operate with our improvement.

A is the driver part of the clutch, and B the driven; C, the shaft to which the clutch gives motion.

D is the cam-shaft for opening and closing the clutch through the intermediate action 0i' cam E and yoke F.

G is the locking-arm, which is mounted on astud, a. xed in one of thearrns of the yokeF.

H is the retaining-catch, fixed to the shaft D. u

The operation is as follows: The clutch is thrown into and out of gear by the shalt D and cam E. The shaft D revolves iu direction as indicated by the arrow, and makes onehalf of a revolution to throw the clutch out ot gear and ouch-alt a revolution to put itinto gear. While it is desired to remain in or out of gear, the shalt D remains stationary.

Fig. l shows the clutch in gear and the locking-arm G hooked on the retaining-catch H. The shalt D being stationary, the clinch cannot open until the shaft D revolves in direction of the arrow, and the catch H will revolve out ot' the way and permit it to be opened by the cam E. vThe next halfrevolution will force the clutch into gear and lock it by the arm G, hooking on the catch H, as shown in Fig. l. The yoke F isjointed at K and held together by the spring J, so that if the teeth of the clutch do not properly mesh in gearing, the springJwill give, and the cam E will not break the yoke.

The combination of sliding clutch B. yoke F, lockingarm G, mounted on a stud iiXed iu one of the arrns of the yoke F, caln catch H, and shaft D, as shown, described, and for the purpose specified.

WILLIAM WHITEHEAD. FRANK W. MAGUIRE.

Witnesses:

JOHN SHINN, WM. F. POTTER. 

